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Operational Amplifier Application Notes

Operational Amplifiers by Subject

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Offline*		 "Must Read" General Op Amp Information
 

AN-A: The Monolithic Operational Amplifier: A Tutorial Study
  AN-20: An Application Guide for Op Amps
  AN-31: Op Amp Circuit Collection
  AN-4: Monolithic Op Amp-The Universal Linear Component
  AN-116: Use the LM158/LM258/LM358 Dual, Single Supply Op Amp
  LB-26: Specifying Selected Op Amps and Comparators
  LB-19: Predicting Op Amp Slew Rate Limited Response
  AN-104: Noise Specs Confusing?
  LB-22: Low Drift Amplifiers
  OA-30: Current vs. Voltage Feedback Amplifiers
    Pease: Electronic Design Article Collection
       
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Offline*		 More Detailed Op Amp Information
 

AN-241: Working with High Impedance Op Amps
  AN-242: Applying a New Precision Op Amp
  TP-15: Reducing DC Errors in Op Amps (Addendum to AN241 & 242)
  LB-44: Get More Power Out of Dual or Quad Op-Amps
  AN-272: Op Amp Booster Designs
  AN-447: Protection Schemes for BI-FET Amplifiers and Switches
  AN-24: A Simplified Test Set for Op Amp Characterization
  AN-227: Applications of Wide-Band Buffer Amplifiers
  AN-262: Applying Dual and Quad FET Op Amps
  AN-298: Isolation Techniques for Signal Conditioning
  AN-775: Specifications and Architectures of Sample-and-Hold Amplifiers
  LB-2: Feedforward Compensation Speeds Op Amp
  LB-4: Fast Compensation Extends Power Bandwidth
  LB-42: Get Fast Stable Response From Improved Unity-Gain Followers
  OA-11: A Tutorial on Applying Op Amps to RF Applications
  OA-14: Improving Amplifier Noise Figure for High 3rd Intercept Amplifiers
  OA-21: Component Pre-distortion for Sallen Key Filters
  OA-22: Pushing Low Quiescent Power Op Amps to Greater than 55dBM 2-Tone Intercept
  OA-24: Measuring And Improving Differential Gain and Differential Phase For Video Buffers w/Disable
  OA-26: Designing High Speed Active Filters
  OA-27: Low-Sensitivity, Lowpass Filter Design
  OA-28: Low-Sensitivity, Bypass Filter Design with Turning Method
  OA-29: Low-Sensitivity, Bypass Filter Design with Parasitic Compensation
  AN-1112: Micro SMD Wafer Level Chip Scale Package
  AN-1187: Leadless Leadframe Package
  AN-1201: 8-Lead LLP Thermal Performance and Design Guideleines
  AB-107: Reworking the LLP Chip Scale Package
       
    Pease: Understand Capacitor Soakage to Optimize Analog Systems
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Offline*		 Device Specific
  AN-29: IC Op Amp Beats FETs on Input Current
  AN-71: Micropower Circuits Using the LM4250 Programmable Op Amp
  AN-72: The LM3900: A New Current-Differencing Quad of Plus or Minus Input Amplifiers
  AN-116: Use the LM158/LM258/LM358 Dual, Single Supply Op Amp
  AN-211: New Op Amp Ideas
  TP-14: Low Voltage Techniques (Addendum to AN 211)
  AN-222: Application Note 222 Super Matched Bipolar Transistor Pair Sets New Standards for Drift and Noise
  AN-242: Applying a New Precision Op Amp
  TP-15: Reducing DC Errors in Op Amps (Addendum to AN241 & 242)
  AN-346: High-Performance Audio Applications of the LM833
  AN-480: A 40 MHz Programmable Video Op Amp
  AN-549: LM6361/LM6364/LM6365 Fast Op Amps Offer High Speed at Low Power Consumption
  LB-17: LM118 Op Amp Slews 70V/microsecond
  OA-12: Noise Analysis for High Speed Op Amps
  OA-23: CLC522 Advanced Operating Considerations and Military Specifications
  OA-16: Wideband AGC Amplifier as a Differential Amplifier
       
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Offline*		 Current Feedback
  OA-31: Current-Feedback Amplifiers
 

AN-597: Current Feedback Amplifier
  OA-30: Current vs. Voltage Feedback Amplifiers
  AN-278: Designing with a New Super Fast Dual Norton Amplifier
  AN-813: Topics on Using the LM6181-A New Current Feedback Amplifier
  OA-07: Current- Feedback Op Amp Applications Circuit Guide
  OA-13: Current- Feedback Loop Gain Analysis
  OA-15: Frequent Faux Pas in Applying Wideband Current Feedback Amplifiers
  OA-20: Current Feedback Myths Debunked
  OA-25: Stability Analysis of Current Feedback Amplifiers
       
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Offline*		 Application Circuits
  AB-104: Photo-Diode Current-To-Voltage Converters
  AB-108: Unlimited Capacitive Load rive Op Amp Takes Guesswork Out Of Design
  AB-116: Lower System Cost Solution for Transmitting Video
 

AN-30: Log Converters
  AN-31: Op Amp Circuit Collection
  AN-256: Circuitry for Inexpensive Relative Humidity Measurement
  AN-263: Sine Wave Generation Techniques
  AN-265: An Electronic Watt-Watt-Hour Meter
  AN-266: Circuit Applications of Sample-Hold Amplifiers
  AN-285: An Acoustic Transformer Powered Super-High Isolation Amplifier
  AN-294: Special Sample and Hold Techniques
  AN-295: A High Performance Industrial Weighing System
  AN-299: Application Note 299 Audio Applications of Linear Integrated Circuits
  AN-300: Simple Circuit Detects Loss of 4-20 mA Signal
  AN-311: Application Note 311 Theory and Applications of Logarithmic Amplifiers
  AN-779: A Basic Introduction to Filters - Active, Passive and Switched-Capacitor
  AN-1240: Video Transmission over Twisted Pair Wire
  AN-1516: Pspice Universal Test Circuits
  LB-1: Instrumentation Amplifier
  LB-5: High Q Notch Filter
  LB-16: Easily Tuned Sine Wave Oscillators
  LB-21: Instrumentational Amplifiers
  LB-23: Precise Tri-Wave Generation
  LB-25: True rms Detector
  LB-52: A Low-Noise Precision Op Amp
       
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Offline*		 Comparators
 

AN-74: LM139/LM239/LM339 A Quad of Independently Functioning Comparators
  AN-41: Precision IC Comparator Runs from Plus 5V Logic Supply
  AN-87: Comparing the High Speed Comparators
  AN-286: Applications of the LM392 Comparator Op Amp IC
  LB-6: Fast Voltage Comparators with Low Input Current
  LB-39: Circuit Techniques for Avoiding Oscillations in Comparator Applications
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Offline*		 Oldies but Goodies
(devces are obsolete, but the information is still usefull)
  AN-253: LH0024 and LH0032 High Speed Op Amp Applications
  AN-79: IC Preamplifier Challenges Choppers on Drift
  AN-261: Low Distortion Wideband Power Op Amp
  LB-11: The LM110 - An Improved IC Voltage Follower
  LB-20: A Fully Differential Input Voltage Amplifier
  LB-24: Versatile IC PreAmplifier Makes Thermocouple Amplifier with Cold Junction Compensation
  LB-27: Micropower Thermometer
  LB-32: MicroVolt Comparator
  OA-19: CLC505 Op Amp Capable of MicroPower Operation
       
    Other Application Notes
    For a complete list of all of National's Application Notes, see the Application Notes index.
    For a complete list of all of National's Amplifiers, Application Notes, see the Amplifiers, Application Notes index.
    Also see our new National Edge monthly online technical publications site.

 


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WHAT'S NEW
Op Amp Products
  • LMV841Q
    CMOS Input, RRIO, Wide Supply Range Operational Amplifiers
  • 60V Common Mode, 50 x Gain, Bidirectional Precision Current Sensing Amplifier
  • LMV841/LMV842/LMV844Q
    CMOS Input, RRIO, Wide Supply Range Quad Operational Amplifiers
  • Nanopower, 1.8V, RRIO, CMOS Input, Operational Amplifier
  • Single/Dual Zero Drift, Low Noise, EMI Hardened Amplifier
  • Low Power, High Linearity IF and Baseband Dual 16 bit ADC Driver With Digitally Controlled Gain
  • 900 MHz Fully Differential Amplifier with Output Limiting Clamp
  • 2.9 nV/sqrt(Hz) Low Noise, Precision , RRIO Amplifier

 

Op Amp Application Notes
  • AN-1808 - LMH730033 Evaluation Board
  • AN-1803 - Design Considerations for a Transimpedance Amplifier
  • AN-1796 - LMP7721 Evaluation Board
  • AN-1784 - LMV1022 / LMV1023 Digital Output PDM Microphone Amplifier Demo Board User's Guide

 

Op Amp Evaluation Boards
  • 551012875-001 - $4.00 Description: 551012875-001 Evaluation Board
  • 551012876-001 - $4.00 Description: 551012876-001 Evaluation Board
  • 551012922-001 - $4.00 Description: SC-70 Amplifier Universal Evaluation Board
  • LMH2100EVAL - $99.00 Description: Evaluation Board for the LMH2100 Logarithmic Power Detector

 

Op Amp Models & Software

SPICE Models:

Software:

 



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